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Retirement savings calculator

Estimate the wealth you will have at retirement and the monthly income it could provide (4% rule).

Indicative estimate: future return, inflation and fees are assumptions, not a guarantee. The 4% rule is a reference, not a certainty. This is not financial advice.

Your age today.
The age at which you want to stop working.
What you already have saved and invested for retirement.
How much you save and invest each month until retirement.
NOMINAL annual return (before discounting inflation). For long-term equity index funds, 6-7% is a common estimate.
Estimated average annual inflation. Used to show your wealth in today's euros (real purchasing power). In Spain it is usually around 2-3%.
Annual product fees (TER). They subtract from the return. An index fund is around 0.2-0.4%; an actively managed fund, over 1.5%.
If you raise your contribution each year (with your salary or inflation), enter it here. Leave it at 0 if it's fixed.
Wealth in today's euros
€222,870
Nominal wealth at retirement
€555,693
Monthly income (today's euros)
€742.90
Monthly income (nominal)
€1,852.31
Years to retirement
37

Savings growth

Show the chart data: Savings growth

Composition at retirement

Wealth€555,693
  • Contributed€148,20027%
  • Interest€407,49373%

Information, not tax or financial advice.

How the retirement savings calculator works

This calculator projects the capital you'll have at retirement by combining what you've already saved, what you contribute each month and the expected return until then. Unlike the FIRE calculator (which reasons in real terms), here you use a nominal return (effective annual, before inflation) and inflation is modelled separately, so you also see your wealth in today's euros.

How to read the result. The nominal wealth is the figure you'll see in your account on the day you retire. The wealth in today's euros discounts inflation: it's what that money will actually buy. The monthly income applies the 4% rule to the real wealth, so it's already in today's purchasing power.

Worked example (default values). At 30, with €15,000 saved and €300/month until 67 (37 years), with a 6 % nominal return, 2.5 % inflation and 0.3 % fees (TER):

  • Contributed: €15,000 + (€300 × 12 × 37) = €148,200. The return is an effective annual one: with the same percentage, changing the contribution frequency only changes when the money goes in, not what it earns.
  • Estimated nominal wealth: about €555,693, thanks to compound interest.
  • In today's euros that's about €222,870 (inflation takes the rest).
  • It would fund an income of about €742.90/month in today's purchasing power (the 4 % rule).

An important note. The public pension likely won't be enough to keep your standard of living; private saving complements it. Future return, inflation and fees are assumptions, not a guarantee: adjust them to explore different scenarios.

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